//
// Copyright (C) 2005-2022 Alfresco Software Limited.
//
// This file is part of the Alfresco Content Mobile iOS App.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//

import UIKit
import Photos

extension PHAsset {
    var primaryResource: PHAssetResource? {
        let types: Set<PHAssetResourceType>

        switch mediaType {
        case .video:
            types = [.video, .fullSizeVideo]
        case .image:
            types = [.photo, .fullSizePhoto]
        case .audio:
            types = [.audio]
        case .unknown:
            types = []
        @unknown default:
            types = []
        }

        let resources = PHAssetResource.assetResources(for: self)
        let resource = resources.first { types.contains($0.type)}

        return resource ?? resources.first
    }

    var originalFilename: String {
        guard let result = primaryResource else {
            return "file"
        }

        return result.originalFilename
    }
}
